The answer is: " 58.9° " .
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By definition, two (2) complementary angles must add up to 90°.
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" 90 - 31.1 = 58.9 " .
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The answer to your question is 30
Answer:
6.96cm^2
Step-by-step explanation:
Area of triangle:
Base*height/2
5.8*2.4/2
Area = 6.96cm^2